Image is Representational - See Manufacturer Specs | Proximity Sensor Inductive Automotive 2-Pin Speed sensors are used to identify change in the magnetic field and produce electronic signal for control system interface. They are primarily used for detecting direction, speed, and even a moving ferrous metal or magnetic target's position. These sensors are utilized in a wide range of applications including gear speed measurement, flow measurement on turbine meters, speed measurement of pumps, blowers, mixers, exhaust and ventilating fans, among others. 3030AN25 Speed Sensor from Honeywell delivers self-powered operation and it is easy to install. It provides direct conversion of actuator speed to output frequency and customized VRS products for unique speed sensing applications. This High Output VRS sensor is designed for use over a wide range of speeds and is adaptable to a wide variety of configurations.